feat(cache,worker): overhaul cache layer and add generation task lease recovery

- shared/cache: add Options/L1/async/metrics/prefix decorators, multi-key ops, Redis pool tuning, and JSON readthrough metrics - worker-generate: claim tasks via DB lease + heartbeat, requeue stale queued tasks, expire dead leases with refund/cache invalidation - tenant: version article cache keys so worker recovery invalidations propagate cleanly - shared/config: expand Redis (pool/timeouts/TLS) and Generation (lease/recovery) configs with defaults Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 02:02:39 +08:00
parent bbfeabdaa5
commit c1ef717d17
37 changed files with 2502 additions and 93 deletions
@@ -265,6 +265,11 @@ type GenerationTask struct {
 	CreatedAt          pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt          pgtype.Timestamptz `json:"updated_at"`
 	OperatorID         pgtype.Int8        `json:"operator_id"`
+	LeaseToken         pgtype.Text        `json:"lease_token"`
+	LeaseOwner         pgtype.Text        `json:"lease_owner"`
+	LeaseExpiresAt     pgtype.Timestamptz `json:"lease_expires_at"`
+	AttemptCount       int32              `json:"attempt_count"`
+	LastHeartbeatAt    pgtype.Timestamptz `json:"last_heartbeat_at"`
 }

 type ImageAsset struct {